Antiskid attachment for wheels



J. M. SIEVERT.

ANTISKID ATTACHMENT FOR WHEELS.

APPLICATION nuzo mus. 1917.

1 ,358,590. Patented Nov. 9, 1920'.

omrao stares PATENT orrlcs.

JOHN M. SIEVERIOF SHERMAN, SOUTH DAKOTA.

ANTISKID ATTACHMENT FOR WHEELS.

Application filed January 13, 1917.

T 0 all whom it may concern:

Be it known that I JOHN M. Srnvnnr, a citizen of the United btates, andresident of Sherman, in the county of Minnehaha and State of SouthDakota, have invented certain new and useful Improvements in AntiskidAttachments for lVheels, of which the following is a specification.

This invention relates to improvements in anti-skid attachments forwheels, and has for its object the provision of an anti-skid dingattachment, which, when engaged with a wheel, will prevent skidding orslipping of the same transversely or longitudinally of a slippery orunsolid roadway.

he an object of equal importance, the invention aims to provide a novelmeans for securely attaching the anti-skid device over the threadportion of a wheel or tire in but a mininnnn amount of time andin such amanner to prevent undue movement of the same, the device being capableof removal or disengagement from the said portion of the wheel or tirewith equal ease and despatch. I

it is also an object of my invention to provide an anti-skid attachmentthat can be secured to the tread portions of wheels varying in size.

Among other aims and objects of the in vention may be recited, theprovision of an attachment of the character mentioned, with a view tocompactness, and in which the number of parts are few, the constructionsimple, and the cost of production small.

The improvements in the details and arrangement of parts will beapparent from an inspection of the accompanying drawings, in connectionwith the specific descr1ption hereinafter contained, and wherein thepreferred embodiment of the invention is disclosed for the purpose ofimparting a full understanding of the same.

In the drawings:

Figure 1 is a side elevation of my improved anti-skid attachment asapplied to a fragment of a vehicle wheel;

Fig. 2 is a transverse section on the hue 2-2 of Fig. 1 looking in thedirection of the arrow, to show the arrangement of the attachment overthe tread portion of the tire; and

Fig. 8 is a detail in gaging the member.

Referring more specifically to the draw plan of the folly en-Specification of Letters Patent.

Patented Nov. 9, 1920.

Serial No. 142,211.

- ings, wherein like reference characters des- 'felly 2 of a vehiclewheel and secured thereto through the medium of a clencher rim 8. Ananti-skid plate, comprising a curved strip 1, is fitted over the treadportion of the pneumatic tire 1 and has formed upon the opposite sidesthereof, upturned flanges 5, the said flanges serving as means forpreventing slipping of the vehicle wheel longitudinally of the road wayor the like, while a rib 6 is also formed inte ral with the outer faceof the strip 4, intermediate the upstanding flanges 5, and afiords meansfor preventing slipping or skidding of the vehicle wheel transversely ofthe road way or the like. The opposite ends of the strip 4: arebifurcated and rolled upon themselves as indicated by the numeral 7 andreceive therethrouah pivot pins 8, whereby chains 9 may be engaged withthe same, the said chains serving as means for receiving the improveddevice for securing the anti-skid plate to the vehicle wheel or tire.

- .In rder to-providejmeans for securing the anti-skid plates 1 to thewheels or more specifically, over the tread portions thereof, there isprovided a substantially rectangular plate 10, the side portions ofwhich are bent outwardly to provide a plurality of rightangularlydisposed flanges 11 adapted to embrace the side portions of the wheelfelly 2. Portions of the said flanges 11 are formed to provide forlaterally extending guide elements 12, the said guide elements beingapproximately L-shaped and having recessed portions or pockets formed inthe body of the plate 10 adjacent their jointnre with the same, whichpockets are designated by the numeral 13. It is evident, that the plates10 by the provision of the flanges 11 will be permitted to fit snuglyover the inner face of the wheel felly 2, thereby preventing unduelateral movement of the same with relation thereto.

A curved. spring supporting armla is secured to the body portion of therim engaging plate 10 by means of a rivet 15 and has the free extremitythereof rolled upon itself whereby to receive a pivot pin 16 e l placedover the tread portion at the tire \l '01 the tire 1.

therethrough, the said pivot pin also servmg as means for plvota'llysupporting a lever tightener 17.

A substantially ii-shaped element 18 1s passed through the offsetportion oi the lever tightener 17 and has its outer extremities hookedas at 19, thereby, providing a plurality or connecting arms. Aswill benoted, the outer portions of the said connecting arms are passed throughthe recesses or pockets 13 formed in the body portion of the rimengaging plates adjacent the gui e members 12. Hence, the same will he1- erly guided in their vertical movement a permit prop r functioningthereo In operation, the anti-skid wheel whereupon the telly enga 10 isthen placed over the inner wheel rim 2 and the hooked e"tr of theconnecting arms a p proper links of the chai '9.

necting arms engaged, the i is now swung upon the pit" 16 to lockedposition, as shown in F. l, conse in engagement with the tread portionthe tire, and thus, liability of slipping or other undue movement of thesame will be materially lessened. The guiding element 12' neseseo willprevent lateral movement of the con necting arm, consequently, allowingthe lever tightener 17 to properly draw the same into clamping or lockedposition. The attachment may be readily removed from the tire or vehiclewheel by merely swinging the lever tightener to its releasing or reverseposition, whereupon, outward movement of the connecting arms will bepermitted and the engaged links of the chain 9 may be readily freed.hould the anti-skid attach men-t be used upon tires vehicle wheels ofvarying size, the hooked portions 19 the connecting arms may he engagedwith 5 any of the links of the chains 9, suc

ditions or preference may dictate.

I claim:

An anti-skid attachment including; an anti-skid member to span the treadportion of the tire, chains engaged with theopposit ends of said member,a truncated -S 1tl}lGl connector for said chains having outtnrnefterminal hooks for engagement with the links of the chain, a hell cra11;,l short arm pivoted at its free e Pl 1 u 1 I i u: l 3 oi: SaltlllllCdLQil a -sllapetl elem tn stantially iJ-shaned spring pivoted atend to the lever at the unction o1: I bracket for engagement with theinner i riphery of the rim oi. wheel and hav projecting laterally fromthe side thereof L-shaped ears to receive and suppi rt the arms of the t-shaped element. said spring having its other end v nziedly secured tothe bracket to bear on the bracket upon movement of the lever to releasethe J- shaped member from engagement with the chain' I V In testimonywhereof I ail); my signatin'e hereto. 7

' JOHNM. SIEVERT.

